Gruff
Graphing library for Ruby that renders charts as images using RMagick.
- Active
- MIT
- Ruby
- Ruby charting libraries
- GitHub stars
- 1.4K
- Commits, last 12 months
- 37
- Contributors
- 43
- Last commit
Overview
Gruff is an open-source Ruby charting library released under the MIT license. Its GitHub repository has 1,398 stars, 240 forks, and 43 contributors. It is actively developed with 37 commits in the last 12 months.
Its GitHub description: Gruff graphing library for Ruby
Install
Development activity
Commits per month to the default branch over the last 12 complete months.
Show data as a table
| Month | Commits |
|---|---|
| Oct 2025 | 0 |
| Nov 2025 | 2 |
| Dec 2025 | 3 |
| Jan 2026 | 0 |
| Feb 2026 | 0 |
| Mar 2026 | 7 |
| Apr 2026 | 7 |
| May 2026 | 6 |
| Jun 2026 | 4 |
| Jul 2026 | 6 |
| Aug 2026 | 0 |
| Sep 2026 | 2 |
Popularity among Ruby charting libraries
Show data as a table
| Tool | Stars |
|---|---|
| Chartkick | 6,528 |
| YouPlot | 4,857 |
| Blazer | 4,802 |
| Gruff | 1,398 |
Alternatives to Gruff
-
Chartkick
Create charts with one line of Ruby.
-
YouPlot
Command-line tool that draws plots in the terminal from piped data.
-
Blazer
Business intelligence tool for Rails apps: explore data with SQL and build charts and dashboards.
More comparisons: Chartkick vs Gruff · Gruff vs YouPlot · Blazer vs Gruff
Gruff FAQ
Is Gruff open source?
Yes. Gruff is released under the MIT license, and its source code is on GitHub.
Is Gruff still maintained?
Yes. Gruff is actively developed, with 37 commits in the last 12 months and the latest commit 28 days ago.
How do I install Gruff?
From RubyGems:
gem install gruff.What are the best alternatives to Gruff?
The most popular alternatives listed in Ruby charting libraries are Chartkick, YouPlot, and Blazer. See the full ranking.
What language is Gruff written in?
Gruff is primarily written in Ruby, according to GitHub.
Data: GitHub API, RubyGems. Updated Oct 4, 2026.